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Underwear & Base Layer

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Underwear & Base Layer

Save big on Men's Underwear at Sportsman's Guide. Every guy could use a couple new pairs of Boxers or Briefs and at Sportsman's Guide you can also choose from Thermal Long Underwear, Compression Shorts, Base Layers, Long Johns to name just a few. These Long Johns and Underwear are great for outdoors activities. Stay comfortable throughout your workday and leisure time. We carry many of your favorite brands like Guide Gear, WSI, Carhartt and more! Shop all Underwear and enjoy the lowest prices, guaranteed!

Under Armour is the original moisture-wicking performance wear, favored by top athletes and hunters. As a base layer, it's unbeatable at keeping you at your best. Infrared fabric technology holds in heat without adding bulk. Scent-control tech keeps your scent under wraps.

It may be C-O-L-D on the job, but that doesn't mean you won't perspire. Designed for men who work up a sweat even in frigid temps, Carhartt Force Long Underwear is the ultimate choice for comfortable layering.